Transcript: What is TIG welding? Tig stands for Tungsten-inert gas welding. The American welding society calls this process “Gas Tungsten Arc Welding” or GTAW. You might also hear it called “heliarc welding.” Tig...

Transcript: What is MIG welding? Mig stands for Metal inert gas welding. The American welding society calls this process “Gas Metal Arc Welding” or GMAW. You might also hear it called “wire welding.” In...